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; Yoshikawa, Hiroshi; Hori, Toshihiko*; ; ; *; *; Yokomizo, Hideaki
Proc. of the 1993 Particle Accelerator Conf., 0, p.602 - 604, 1993/00
no abstracts in English
Suzuki, Yasuo
Purazuma, Kaku Yugo Gakkai-Shi, 68(5), p.488 - 502, 1992/11
no abstracts in English
Harami, Taikan; Yokomizo, Hideaki; Ono, Hideo; Hara, Masahiro*; *
Nihon Genshiryoku Gakkai-Shi, 33(4), p.310 - 317, 1991/04
Times Cited Count：0 Percentile：0.01(Nuclear Science & Technology)no abstracts in English
*; Shimada, Taihei; Kabasawa, M.*; Harami, Taikan; Yonehara, Hiroto; *; *;
JAERI-M 91-045, 110 Pages, 1991/03
no abstracts in English
*; Suzuki, Hiromitsu; Minehara, Eisuke; Harami, Taikan
JAERI-M 91-012, 58 Pages, 1991/02
no abstracts in English
*; Otsuka, Hideo; *; Harami, Taikan; Yokomizo, Hideaki; Suzuki, Yasuo
JAERI-M 90-121, 61 Pages, 1990/08
no abstracts in English
Harami, Taikan; Yokomizo, Hideaki; Otsuka, Hideo; Shimada, Taihei; ; ; Yoshikawa, Hiroshi; Suzuki, Hiromitsu; Kabasawa, M.*; *; et al.
Part. Accel., 33, p.1753 - 1758, 1990/00
no abstracts in English
*; Suzuki, Yasuo
Nihon Genshiryoku Gakkai-Shi, 31(9), p.1007 - 1011, 1989/09
no abstracts in English
Kabasawa, M.*; *; Harami, Taikan; Shimada, Taihei; ; Yokomizo, Hideaki
JAERI-M 89-109, 63 Pages, 1989/08
no abstracts in English
Harami, Taikan
JAERI-M 89-079, 35 Pages, 1989/06
no abstracts in English
Okamoto, Yoshihiro; Takano, Masahide; Akabori, Mitsuo
no journal, ,
XAFS measurements of some uranium oxides were performed in the beamline which can use nuclear materials. In the XANES analysis, energetic shift was clearly observed in white lines of UO
, UO
and UCl. Some important features such as the nearest U-O distance and ordering of U-U interaction for each samples were also confirmed by Fourier transformed R-space analyses. These results show that XAFS analysis using uranium L
edge can use research studies in valence and local structure of debris samples.
Yaita, Tsuyoshi; Nishihata, Yasuo; Okane, Tetsuo; Shiwaku, Hideaki; Fujimori, Shinichi
no journal, ,
no abstracts in English
Tominaga, Aki; Shobu, Takahisa; Kamei, Naomitsu; Muramatsu, Toshiharu
no journal, ,
A joint exists in mechanical structure. The material used according to the use environment is also various for mechanical structure. The reliability is requested of the technology to which those are joined. Laser machining doesn't choose the material. It's expected that this is used as variety material junction technique and necessary welding technique. It's necessary to consider influence of a stress by the variety organization of the joint neighborhood, the mechanical property and the difference in the heat expansion coefficient between the variety metal together. To aim at generalization by this TAKUMI's technological calculation scientific simulation, permanent deformation spacial distribution inside the same kind material weld material between the carbon steel, the carbon steel and the variety material weld material of oxygen-free copper by a high powered fiber laser was measured and the special quality about the processing influence was estimated.
Tominaga, Aki; Shobu, Takahisa; Sato, Seiichi*; Hatakeyama, Kiyoshi*; Nagai, Takayuki
no journal, ,
Glassy radioactive waste is a promising method for treating radioactive waste. Many kinds of elements are confined in the glass raw material. To stablish technology of confirm the stability for vitrified substances is required. We developed an analytical method for residual stress in vitrified radioactive waste samples using the analyzing from synchrotron-ray diffraction and scattering profile. We are studying application to various vitrified radioactive waste samples. We hope that this measurement method will be one of the methods for contributing to the solvation of vitrification technology.
Nishihata, Yasuo; Shiwaku, Hideaki; Fujimori, Shinichi; Okane, Tetsuo; Yaita, Tsuyoshi
no journal, ,
no abstracts in English
Tominaga, Aki; Shobu, Takahisa; Sato, Seiichi*; Hatakeyama, Kiyoshi*; Nagai, Takayuki
no journal, ,
High level radioactive vitrified materials are subject to monitoring during decades at storage facilities and over tens of thousands of years at final disposal sites. Although sufficient structural stability for long-term storage is necessary, high effluent filling which is often incompatible with mechanical and chemical integrity are required. The inhomogeneity of the glass yielded in preparation will cause the instability of the glass. Residual stress is one of the important parameters for evaluating the stability of the vitrified materials. Conventional stress measurement using a strain gauge reveal the averaged stress of whole specimen, however, local stress is also important because it can be an origin of the deformation or crack. Therefore, we developed a method using high-energy synchrotron X-ray stress measurements to clarify the local strain of the vitrified materials. Moreover, stress of each structural component such as crystalline and glass matrix can be separated by the method.
Taira, Yoshitaka*; Okano, Yasuaki*; Hirade, Tetsuya; Yabuuchi, Atsushi*
no journal, ,
High-energy ultrashort pulse gamma rays obtained by inverse Thomson/Compton scattering in UVSOR were applied to gamma-ray-induced positron annihilation spectroscopy. In gamma-ray-induced positron annihilation lifetime spectroscopy (GiPALS), a positron lifetime measurement system with a time resolution of 140 ps in full width at half maximum was developed using eight BaF
scintillation detectors and two digital oscilloscopes. GiPALS is currently available for users and in situ measurements of positron lifetime under stress loading is conducted. The development of gamma-ray-induced age-momentum correlation (GiAMOC) system using Ge semiconductor detectors is also in progress. Furthermore, the effect of pulsed gamma-ray scattering on the positron lifetime spectra is evaluated computationally using the Monte Carlo simulation code EGS5, and the method is being refined. The development of spin-polarized positron annihilation spectroscopy using circularly polarized gamma rays is also planned in the future.
